Origin and Habitat: Tarvita , Azurdua Co. , dpt. Chuquisaca , Bolivia.
Altitude: Around 2700 metres above sea level.

• Rebutia tarvitaensis F.Ritter
• Aylostera tarvitaensis (F.Ritter) Mosti & Papini

• Rebutia spegazziniana Backeb.
• Aylostera spegazziniana Backeb. in Backeb. & F.M.Knuth
• Echinorebutia spegazziniana Backeb.
• Rebutia froehlichiana Rausch
• Aylostera froehlichiana (Rausch) Mosti & Papini
• Rebutia fusca F.Ritter
• Aylostera fusca (F.Ritter) Mosti & Papini
• Rebutia mamillosa Rausch
• Aylostera mamillosa (Rausch) Mosti & Papini
• Rebutia mamillosa var. australis F.Ritter
• Rebutia mamillosa var. orientalis F.Ritter
• Rebutia patericalyx F.Ritter
• Aylostera patericalyx (F.Ritter) Mosti & Papini
• Rebutia rubiginosa F.Ritter
• Aylostera rubiginosa (F.Ritter) Backeb.
• Rebutia spegazziniana var. atroviridis (Backeb.) Šída
• Rebutia spegazziniana var. boliviensis n.n., Rausch
• Rebutia boliviensis hort.
• Rebutia sumayana Rausch
• Aylostera sumayana (Rausch) Mosti & Papini
• Rebutia tarijensis Rausch
• Aylostera tarijensis (Rausch) Mosti & Papini
• Rebutia tarvitaensis F.Ritter
• Aylostera tarvitaensis (F.Ritter) Mosti & Papini
• Rebutia tuberosa F.Ritter
• Aylostera tuberosa (F.Ritter) Backeb.
• Rebutia vulpina F.Ritter
• Aylostera vulpina (F.Ritter) Mosti & Papini
• Rebutia fiebrigii var. vulpina hort.
• Rebutia vulpes F.Ritter
• Rebutia waltheriana Backeb.
• Aylostera waltheriana (Backeb.) Y.Itô
• Rebutia zecheri Rausch
• Aylostera zecheri (Rausch) Mosti & Papini
• Lobivia atrovirens var. zecheri (Rausch) Rausch

Description: Very small clumping plants.
Stems: Individual heads short-cylindrical 3-6 cm wide, 4 cm tall, The colour of the epidermis vary from grey-green to olive-green with violet tints.
Spines: Short .
Flowers: 4-4,5 cm in diameter bright orange-red.
Roots: Tap root.

Notes: It would appear that in cultivation they grow larger and cluster more vigorously than in habitat.

Bibliography: Major referneces and further lectures
1) Walther Haage “Cacti and succulents: a practical handbook” Dutton, 1963
2) Edward Anderson “The Cactus family” Timber Press, Incorporated, 2001
3) James Cullen, Sabina G. Knees, H. Suzanne Cubey "The European Garden Flora Flowering Plants: A Manual for the Identification of Plants Cultivated in Europe, Both Out-of-Doors and Under Glass" Cambridge University Press, 11/Aug/2011
4) David R Hunt; Nigel P Taylor; Graham Charles; International Cactaceae Systematics Group. "The New Cactus Lexicon" dh books, 2006
5) N. L. Britton, J. N. Rose “The Cactaceae. Descriptions and Illustrations of Plants of the Cactus Family.” Volume 4, The Carnegie Institution of Washington, Washington 1923,
6) Curt Backeberg: “Die Cactaceae: Handbuch der Kakteenkunde” Volume V, Gustav Fischer Verlag, Stuttgart New York 1982–1985

Cultivation and Propagation: It is easy to grow and recommended for beginners. Prefer gritty, porous mix with a pH slightly on the acidic side. Full sun to light shade, Water regularly in summer but do not overwater (the root system is rot prone) and allow the pot to dry out between waterings. Keep dry in winter Hardy to -4°C it will take low temperatures when dry and do require a winter rest period. This species will occupy a small flower pot comfortably and remain a manageable sized house plant.
Pest and disease: This plants are subject to mealy-bug attack and to fungus and rot problems brought about by overwatering and high humidity.
Propagation: Seed or offsets.